91266441746832 has 160 divisors (see below), whose sum is σ = 285810544632960. Its totient is φ = 27653910036480.

The previous prime is 91266441746803. The next prime is 91266441746849. The reversal of 91266441746832 is 23864714466219.

91266441746832 is a `hidden beast` number, since 9 + 1 + 2 + 66 + 441 + 74 + 68 + 3 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 91266441746832.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50205208 + ... + 51991304.

It is an arithmetic number, because the mean of its divisors is an integer number (1786315903956).

Almost surely, 2^{91266441746832} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91266441746832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142905272316480).

91266441746832 is an abundant number, since it is smaller than the sum of its proper divisors (194544102886128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91266441746832 is a wasteful number, since it uses less digits than its factorization.

91266441746832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796878 (or 1796866 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 91266441746832 in words is "ninety-one trillion, two hundred sixty-six billion, four hundred forty-one million, seven hundred forty-six thousand, eight hundred thirty-two".